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What are burrs in a seeing machine - Sewing Machines

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Burrs are little nicks that have occurred by needles or other items by manufacturer defect or the item striking the machine causing a nick, sharp dent or edge. If in a particular spot, the burr can snag the thread or fabric.

Posted on Apr 15, 2017


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Posted on Jan 02, 2017


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My machine keeps on breaking the thread

You don't state which thread is breaking, so will assume it is the top thread.

AVOID using old or bargain bin thread!

Remove the thread.
Install a brand new needle.
ALWAYS RAISE the presser foot and rethread from the beginning.
Verify the thread path is correct.
Set the top tension to the midway point (this may need to be tweaked for your individual machine).

If it still breaks, then the thread may be catching somewhere, perhaps on the needle plate or in the bobbin area. When a needle deflects, it will sometimes strike somewhere and cause a burr or rough spot. That rough spot will then catch the thread and cause it to break or shred.

Wrap your index finger with a fine piece of scrap fabric like chiffon, nylon knit, or silk. Then run your finger around the surface (top & bottom) of the needle plate and in the bobbin area. If the fabric catches, there is a burr. Also check the hook/shuttle as this where a lot of burrs are located. If it is a small burr, it can be smoothed with a fine emery board or emery cloth. It the burr is large, the part may need to be replaced.

Sewing Machine Problem 1 Thread Breakage

Sewing Machine Thread Keeps Breaking

Apr 15, 2017 | Sewing Machines

1 Answer

How to adjust timing for Rex blindstitch hemmer

As long as your machine is not skipping stitches the timing should be fine. Three things to check: take your thread tension assembly apart so you can remove the discs and clean. Debris often gets between them and causes irregular tension. Next check the point of the looper to see if has a burr. If so take 600 sandpaper or crocus cloth and remove. Last-Check the upright pin that the looper passes--it too may have a burr.

Mar 24, 2015 | Rex RX-518

1 Answer

I was sewing and my machine locked up. Its a 910 bernina

Does the hand wheel turn ? Does anything move when you turn the hand wheel ? If not, may be a mechanical seizure, usually from overheating or maladjusted gears.

It may also be a seized thread. Thread may catch in a burr in the needle, or a burr in a thread guide. Check the entire thread pathway, make sure no loose thread is caught anywhere, there are no rough spots or burrs in any guide. Clean lint out of the bobbin area, and under the feed dogs. Make sure the thread hasn't wound around the spool pin or spindle, which can cause an abrupt stop in stitching, though it usually also breaks the thread and sometimes the needle too.

Clean it thoroughly, unthread and rethread. Those are always the first steps if something goes wrong. If you can get it moving and it happens again, turn the hand wheel slowly and watch to see if the thread is popping out of any thread guide, or out of the tension adjuster.

If the hand wheel won't turn, it may well be seized gears, which may be a costly repair. You can open up the machine and look inside to see if any gears are stuck, or missing teeth.

Do you oil this machine regularly ? All machines should be oiled periodically. If you use it a lot, oil more often.

Oct 09, 2014 | Sewing Machines

1 Answer

Husqvarna viking 990

try checking the wire loop and see if there is a burr on it an if there is try using a small file to take the burr off
or check to see if the wire loop is bent, it may have to be replaced.

Jul 25, 2013 | Sewing Machines

1 Answer

Bobber keeps popping out

Bobber? lol If you have problems like this it is one of a couple things. 1. you've put the bobbin in upside down (it's not unspooling correctly)
2. The bobbin case or bobbin has a burr.
3. it's rare but a needle plate with a burr can do this too.

if you find burrs.... get some fine sand paper and smooth them away.

Dec 09, 2012 | Kenmore Drop-In Bobbin 16231 Mechanical...

1 Answer

Janome sewing machine thread breaks while quilting

Check for burrs. Even the tiniest burr can break thread. Check the needle throat plate, the bobbin area...

Get out your magnifying glass and really inspect it. If you find a burr... carefully smooth it down with some very fine (1200 grit) sand paper.

Jul 20, 2012 | Juki Sewing Machines

1 Answer

Top thread randomly breaks during sewing. very frustrating. Can not locate my manual.

make sure the thread is not caught around the thread spool
check the top tension it could be to high,,try 3 or 4
check top thread tension area to see if there's any loose threads or lint
check the needle to make sure it's not bent or blunt or have a burr on it- make sure it's the correct needle for the fabric
check needle plate for burrs
check bobbin for burrs
clean under needle plate for loose threads or lint--also in bobbin area

Aug 03, 2011 | Kenmore Sewing Machines

1 Answer

Upper thread breaking

check to see if you've missed a step in threading the machine
check the tension to see if it's correct
check the needles closely to see if there's a burr on the needle eye
check the throat plate for burrs
check the loopers for burrs

Aug 25, 2010 | Toyota TL-432DE Mechanical Sewing Machine

1 Answer

My 2134 is shreading the thread at the last thread

try changing the thread to a different type on a sample piece of fabric
if that doesn't help check the thread guide you mentioned & see if has any burrs on it, burrs can damage thread

Jul 31, 2010 | PfaFF Sewing Machines

1 Answer

Suddenly my needle became loose and when I tried to reinsert it as the manual instructs (flat side facing away) it now hits the metal plate. I think this is an easy fix because it seems to me that this...

sounds like the needle is bent & needs to be replaced.
check your throat plate to see if there are any burrs on the plate because they can snag the fabric
if you feel any burrs on the plate take it to a service dealer to have the burr removed

Jul 21, 2010 | Necchi 3537 Mechanical Sewing Machine

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